Which ordered triple is a solution of this system? 2x + y - z = 7 -x - 2y + 4z = -15 x + 2y - 5z = 17 a) (3, 1, 0) b) (1, 3, -2) c) (2, 5, 2) d) (-2, 6, -5)

  b)  (1, 3, -2)

Step-by-step explanation:

A suitable calculator can give you the answer to this right away. Or, you can try the answer choices in the equations to see which works.

The answer choice that works is choice B.

  2·1 +3 -(-2) = 7

  -1 -2(3) +4(-2) = -15

  1 +2(3) -5(-2) = 17

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation: